What does extraterrestrial life look like? This lecture explores
current thinking about what extraterrestrial life might be like not by
guessing their appearances, but instead applying lessons learned from
our growing understanding of how evolution and biochemistry work on
Earth. I will discuss Universal versus Parochial characteristics,
Convergent Evoluti ... Show More
Dec 2009
Lecture 45: The Future of Life in the Universe
How will life, the Universe, and everything end? This lecture looks at the evolution of our expanding Universe to project the prospects for life into the distant cosmological future. Recent observations show that we live in an infinite, accelerating universe. I will trace the evo ... Show More
44m 4s
<p>La durée de vie d'une étoile peut nous renseigner sur sa composition et sur l'existence éventuelle de la vie dans le cosmos. mais, en dehors du Soleil, il est assez difficile de déterminer l'âge d'une étoile.</p><br><p>L'importance de la masse</p><br><p>En évaluant, grâce à la ... Show More
